ATE300411T1 - INDELASABLE MARKING ON OPTICAL DISCS - Google Patents
INDELASABLE MARKING ON OPTICAL DISCSInfo
- Publication number
- ATE300411T1 ATE300411T1 AT01310895T AT01310895T ATE300411T1 AT E300411 T1 ATE300411 T1 AT E300411T1 AT 01310895 T AT01310895 T AT 01310895T AT 01310895 T AT01310895 T AT 01310895T AT E300411 T1 ATE300411 T1 AT E300411T1
- Authority
- AT
- Austria
- Prior art keywords
- image
- stamper
- substrate
- indelasable
- marking
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
- 239000000758 substrate Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
- B29C45/372—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings provided with means for marking or patterning, e.g. numbering articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
- B29D17/005—Producing optically read record carriers, e.g. optical discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/44—Information for display simultaneously with playback of the record, e.g. photographic matter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
- B29C2043/023—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves
- B29C2043/025—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves forming a microstructure, i.e. fine patterning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3444—Feeding the material to the mould or the compression means using pressurising feeding means located in the mould, e.g. plungers or pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3488—Feeding the material to the mould or the compression means uniformly distributed into the mould
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00876—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy wherein physical copy protection means are attached to the medium, e.g. holograms, sensors, or additional semiconductor circuitry
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Signal Processing (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Polarising Elements (AREA)
- Optical Recording Or Reproduction (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Light-readable information-recording media are fabricated according to a method wherein the back of a production stamper is laser-scribed, diamond-scribed, etched, or marked by other means to produce an image. This production stamper is then used to form a substantially transparent substrate having information recorded on it by means of pits and lands. During the formation of the substrate, the image is transferred from the back of the stamper to the surface of the substrate. The resulting watermark may be visible under normal light conditions. Information-recording media bearing indelible watermarks according to the present invention are also disclosed. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25846200P | 2000-12-27 | 2000-12-27 | |
US09/996,315 US20020081413A1 (en) | 2000-12-27 | 2001-11-28 | Indelible watermark on optical discs |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE300411T1 true ATE300411T1 (en) | 2005-08-15 |
Family
ID=26946651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01310895T ATE300411T1 (en) | 2000-12-27 | 2001-12-27 | INDELASABLE MARKING ON OPTICAL DISCS |
Country Status (8)
Country | Link |
---|---|
US (1) | US20020081413A1 (en) |
EP (1) | EP1219402B1 (en) |
JP (1) | JP2002288892A (en) |
KR (1) | KR20020053770A (en) |
AT (1) | ATE300411T1 (en) |
AU (1) | AU778954B2 (en) |
DE (1) | DE60112234T2 (en) |
HK (1) | HK1048786B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7162052B2 (en) | 1998-04-16 | 2007-01-09 | Digimarc Corporation | Steganographically encoding specular surfaces |
US7065228B2 (en) * | 2002-10-31 | 2006-06-20 | Digimarc Corporation | Injection molding process including digital watermarking and articles manufactured from injection molding process |
US20030053656A1 (en) * | 2001-04-06 | 2003-03-20 | Levy Kenneth L. | Digitally watermarking physical media |
US7248715B2 (en) * | 2001-04-06 | 2007-07-24 | Digimarc Corporation | Digitally watermarking physical media |
US20020146147A1 (en) * | 2001-04-06 | 2002-10-10 | Levy Kenneth L. | Digitally watermarking physical media |
US7018572B2 (en) * | 2001-06-11 | 2006-03-28 | General Electric Company | Method for producing data storage media |
US6779729B2 (en) * | 2002-04-15 | 2004-08-24 | Milliken & Company | Optical disc storage containers that facilitate detection of the presence of optical and/or audio discs stored therein |
US20030193883A1 (en) * | 2002-04-15 | 2003-10-16 | Parks William S. | Methods of detecting counterfeit or authentic optical and/or audio discs |
JP2008511093A (en) * | 2004-08-23 | 2008-04-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Focus control for media scanning system |
US8369562B2 (en) * | 2007-03-30 | 2013-02-05 | Hitachi Global Storage Technologies Netherlands B.V. | Encryption methods for patterned media watermarking |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02134219A (en) * | 1988-11-15 | 1990-05-23 | Sekisui Chem Co Ltd | Molding die of substrate for data recording medium |
JP3109866B2 (en) * | 1990-11-17 | 2000-11-20 | 太陽誘電株式会社 | Substrate for optical information recording carrier and method of manufacturing the same |
GB9112791D0 (en) * | 1991-06-13 | 1991-07-31 | Applied Holographics | Optical data storage disc |
JPH0855370A (en) * | 1994-08-11 | 1996-02-27 | Nippon Columbia Co Ltd | Production of optical disk and stamper, metal mold, and optical disk |
JPH08229994A (en) * | 1995-02-27 | 1996-09-10 | Teijin Ltd | Stamper for optical disc and manufacture thereof |
JPH11149673A (en) * | 1997-11-14 | 1999-06-02 | Victor Co Of Japan Ltd | Information recording carrier, production of information recording carrier and stamper |
US6203156B1 (en) * | 1998-03-31 | 2001-03-20 | Johnson & Johnson Vision Care, Inc. | Contact lenses bearing marks |
-
2001
- 2001-11-28 US US09/996,315 patent/US20020081413A1/en not_active Abandoned
- 2001-12-27 EP EP01310895A patent/EP1219402B1/en not_active Expired - Lifetime
- 2001-12-27 KR KR1020010085971A patent/KR20020053770A/en not_active Application Discontinuation
- 2001-12-27 AT AT01310895T patent/ATE300411T1/en not_active IP Right Cessation
- 2001-12-27 AU AU97482/01A patent/AU778954B2/en not_active Ceased
- 2001-12-27 JP JP2001398482A patent/JP2002288892A/en active Pending
- 2001-12-27 DE DE60112234T patent/DE60112234T2/en not_active Expired - Lifetime
-
2002
- 2002-11-29 HK HK02108718.2A patent/HK1048786B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE60112234D1 (en) | 2005-09-01 |
HK1048786A1 (en) | 2003-04-17 |
EP1219402A1 (en) | 2002-07-03 |
EP1219402B1 (en) | 2005-07-27 |
US20020081413A1 (en) | 2002-06-27 |
HK1048786B (en) | 2006-05-26 |
DE60112234T2 (en) | 2006-04-13 |
AU778954B2 (en) | 2004-12-23 |
AU9748201A (en) | 2002-07-04 |
JP2002288892A (en) | 2002-10-04 |
KR20020053770A (en) | 2002-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |